EP 2922300 A4 20160817 - SERVER DEVICE, TERMINAL, THIN CLIENT SYSTEM, SCREEN TRANSMISSION METHOD AND PROGRAM
Title (en)
SERVER DEVICE, TERMINAL, THIN CLIENT SYSTEM, SCREEN TRANSMISSION METHOD AND PROGRAM
Title (de)
SERVERVORRICHTUNG, ENDGERÄT, THIN-CLIENT-SYSTEM, BILDSCHIRMÜBERTRAGUNGSVERFAHREN UND PROGRAMM
Title (fr)
DISPOSITIF DE SERVEUR, TERMINAL, SYSTÈME CLIENT LÉGER, PROCÉDÉ DE TRANSMISSION D'ÉCRAN ET PROGRAMME ASSOCIÉ
Publication
Application
Priority
- JP 2012250887 A 20121115
- JP 2013080762 W 20131114
Abstract (en)
[origin: EP2922300A1] A server apparatus comprises: a virtual client unit that generates screen data by executing a drawing command(s) using an application software; an image encoding unit that performs compression encoding of the screen data; a drawing command encoding unit that performs compression encoding of the drawing command(s); a bandwidth measurement unit that measures a bandwidth of a network based on a response packet from a terminal connected to the server apparatus via the network for a packet transmitted to the terminal; a selection unit that selects which of the compression encoded screen data or the compression encoded drawing command(s) is to be transmitted to the terminal in accordance with the measured bandwidth; and a packet transceiver unit that transmits to the terminal the selected one of the compression encoded screen data or the compression encoded drawing command(s). Delay in screen display at a client terminal is prevented in a case of fluctuation in network bandwidth between a thin client server apparatus and a terminal.
IPC 8 full level
H04N 21/238 (2011.01); H04N 21/2343 (2011.01); H04N 21/236 (2011.01); H04N 21/24 (2011.01); H04N 21/2662 (2011.01)
CPC (source: CN EP US)
H04L 67/10 (2013.01 - US); H04L 69/04 (2013.01 - US); H04N 21/234309 (2013.01 - EP US); H04N 21/236 (2013.01 - CN EP US); H04N 21/238 (2013.01 - CN EP US); H04N 21/2402 (2013.01 - CN EP US); H04N 21/2662 (2013.01 - EP US); H04N 21/8543 (2013.01 - EP US)
Citation (search report)
- [IY] US 2003055889 A1 20030320 - CHEN MENG-CHENG [TW], et al
- [Y] US 2010303146 A1 20101202 - KAMAY YANIV [IL]
- [A] US 2005010697 A1 20050113 - KINAWI HUSAM [CA], et al
- See references of WO 2014077307A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2922300 A1 20150923; EP 2922300 A4 20160817; CN 104782134 A 20150715; CN 104782134 B 20180605; JP 5983761 B2 20160906; JP WO2014077307 A1 20170105; KR 101667970 B1 20161020; KR 20150063450 A 20150609; US 2015296054 A1 20151015; WO 2014077307 A1 20140522
DOCDB simple family (application)
EP 13855936 A 20131114; CN 201380059552 A 20131114; JP 2013080762 W 20131114; JP 2014547022 A 20131114; KR 20157010396 A 20131114; US 201314442948 A 20131114